Combined tool rack and gage.



UNITED STATES PATENT OFFICE.

CHARLES H. DRIVER, 0F RACINE, WISCONSIN.

COMBINED TOOL RACK AND GAGE.

Tu all whom it may concern Be it known that I, CHARLES H. DRIVER, acitizen of the United States, and a resident of Racine, in the county ofRacine and State of Wisconsin, have invented certain new and usefulImprovements in Combined Tool Racks and Gages; and I do hereby declarethat the following is a full, clear, and exact description thereof,reference being had to the accompanying drawings, and to the charactersof reference marked thereon, which form a part of this specification.

This invention relates to a novel drill rack and gage designed tosupport drills, reamers, taps and sizers and like tools in convenientposition for selection, and arranged also to gage the drills or othertools in such manner that a drill or other tool of a given size can beplaced only in its proper gaging and supporting hole and will not bereceived by another gaging and supporting hole, whereby the properposition of the drill on its rack is insured.

The invention consists in the matters hereinafter set forth and moreparticularly pointed out in the appended claims.

In the draWings,Figure 1 is a plan view of a combined drill holder andgage embodying my improvements. Fig. 2 is a side elevation thereof. Fig.3 is a sectional detail of one of the members of a built up drill holderand gage. Fig. 4 is a sectional detail of a modification.

The drill rack embraces a series of offset planes or stages 10, 10having holes 11, 11 therein, each plane or stage being separated from anadjacent plane or stage by the inclined or beveled areas 12, 12 arrangedparallel to and one in front of each stage. The said inclined or beveledareas 12 are adapted to receive proper indicating marks or figures 14,14: to indicate the sizes of the drill rack openings, one suchdesignating number being located beneath or in front of each drillreceiving opening.

Each hole 11 is bored throughout the principal part of its length withthe size of drill it is adapted to receive, hold and gage, but theextreme bottom of the hole is bored with the next smaller size of drillto provide an annular shoulder, as indicated at 15, (Fig. 8) so that thedrill belonging to said hole will be received in and gaged thereby, butwill be arrested by the shoulder 15 at the bottom of the hole. Thedifference in Specification of Letters Patent.

Application filed March 10, 1911.

Patented May *7, 1912.

Serial No. 613,657.

diameter between the holes and the annular shoulders 15 will be equal tothe difference in the graduated sizes of the drills to be racked andgaged by the device. For instance,,if the graduation be based ondifferences in diameter of one-sixty fourth of an inch, the annularshoulders 15 are one-sixtyfourth of an inch less in diameter than theholes 11. Then the graduations are based on a greater or less difierencein sizes the differential diameters of the annular shoulders and holeswill be correspondingly varied.

WVith the arrangement described it will be obvious that a drill of agiven size can be racked only in the hole to which it belongs, becauseif it be placed in a larger hole it will slip therethrough and thusindicate that the hole is a wrong size, and if it be attempted to placethe drill in a smaller hole it will not enter the same. Therefore thearrangement of the holes and of the supporting shoulders at the bottomsthereof serves to automatically gage the drills and rack the same.

Where a set of drills of graduated sizes are to be supported on therack, the larger holes will preferably be placed at the top of the rack,beginning at the left hand side of each stage, and said holes willgradually be decreased in size in accordance with the graduations of thedrills so that the smallest hole will be located at the right hand endof the lower stage. This arrangement gives a forwardly tapering effectto the gage, as indicated in Fig. 1. In some cases it may be desirableto have all of the holes of one or more stages bored for drills of thesame diameter as where a large number of drills of the same size arerequired.

The gage device may be supported on front and rear supporting members 17and 18 of any convenient construction which are attached by the screws19 or otherwise to the front and rear margins of the gage plate. Ifdesired the front support 17 may be omitted and the rear support 18provided with horizontal openings 20 through which 'may extend fasteningbolts to fasten the deeach bar having a row of the openings 11 and acorresponding oblique face 12, which latter bears the identifyingnumerals or characters by which to identify the gage holes. As hereinshown, each bar 21 is provided at its rear side with an oifset flange orlip 22 and at its front side with a similar flange 23, the front flange23 of one bar being adapted to overlap the rear flange 22 of the nextadjacent forward bar. When thus arranged the bars may be attachedtogether by the fillister head screws 24: arranged to extend upwardlythrough openings 25 in the flanges 22 and into screwthreaded openings 26of the associated flange 23. In this construction also the rearmo-st baris attached by the fillister head screws 19 to the rear support 18, saidscrews extending upwardly into screw-threaded openings in an overhangingflange 27 of the rear support 18. This manner of building up andattaching the bars or members 21 permits the gage to be extended orexpanded within practical limits so as to provide for a larger orsmaller number of gaging holes. Inasmuch as the extension of the gagefrom front to rear by the addition of bars, has the effect to raise therear end of the gage plate, means are pro-vided for vertically extendingthe rear supporting member 18. This may be effected by providing thesaid rear supporting member with extension legs 28 which extend upwardlythrough hollow lugs 29 at the side margins of the rear support and intocored out recesses 30, indicated in dotted lines in Fig. 2. The saidlegs are adjust-ably fixed to the rear support by means of the setscrews 31 one of which is shown in Fig. 2. Thus when the gage is widenedby the addition of one or more bars 21 the extension legs 28 will belowered the required distance to bring the same to the horizontal levelof the lower end of the front supporting member 17.

In lieu of the annular shoulders 15 for the gaging holes which are boredby a drill of the next smallerdiameter, I may provide the constructionshown in Fig. 4:, wherein the gage plate 32 has attached to the lowerside thereof a thin plate 33, with both of said plates drilled with thesame size holes. The lower or thinner plate is attached to the upperplate, as by screws 34., with the axis of the holes therein shiftedslightly out of line with the holes of the gage plate, thereby providingan oflset shoulder to arrest and support the drills, the extension ofthe shoulder thus formed beyond the wall of the gage hole being equal tothe diflerence in sizes of the graduated drills.

I claim as my invention 1. A combined tool rack and gage, comprising amember having a row of graduated holes into which tools may be insertedand supported, each of said holes being of proper diameter to gage atool and having its lower end contracted to a diameter equal to thegraduated difference in the sizes of the tools, said hole being therebyprevented from receiving and supporting a tool of a gage differing fromthe gage of the upper end of said hole.

2. A combined tool rack and gage comprising a plurality of parallelmembers dctachably connected together along their marginal edges, eachof said members being provided with a series of gage holes adapted toreceive and support a series of tools.

3. A combined tool rack and gage comprising a plurality of parallelmembers each provided with a series of gage holes adapted to receive andsupport a series of tools, each of said members being provided at itsfront and rear margins with flanges which overlap the flanges ofadjacent members and means for securing said flanges together.

4. A combined tool rack and gage comprising a series of parallel membersprovided with graduated gage holes and having means for connecting themat their margins, whereby the rack may be expanded or contracted atwill, and front and rear supports detachably fastened to the front andrear margins of the rack, the rear support being provided with extensionlegs to adapt the rear support to gages of difierent widths.

5. A combined tool rack and gage comprising a series of parallel membersprovided with graduated gage holes and having means for connecting themat their margins, whereby the rack may be expanded or contracted atwill, and front and rear supports detachably fastened to the front andrear margins of the rack, the rear support being provided with screwholes to permit the device to be fastened to a vertical support.

In testimony, that I claim the foregoing as my invention I affix mysignature in the presence of two witnesses, this 6th day of March A D.1911.

CHARLES H. DRIVER.

WVit-nesses W. F. JACKSON, A. G. LANGLOIS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, D. C.

